Flip the PlayStation 2 back to its original upside position.
Lift the top cover off the bottom case.
To facilitate the removal, it is recommended to pry open the half closer to the power switch first while rocking the top cover towards the front of the bottom case.
Carefully remove the power cord that attaches the top and bottom halves by disconnecting the power cord assembly from the top case.
Do not remove the power board yet. It is still attached to the motherboard assembly via the power board connector (highlighted in the first picture), which is located next to the main power switch.
Carefully lift the power board. You should now see the power board connector attached to the power board.
Pull the power board connector straight to lift it out of its socket on the power board.
Unclip flaps, one on one side and two on the other, holding the disc drive together. The first two pictures display where the three flaps are. This is very tricky so take your time.